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Question

Find the value of x & y in the equation x3y7=0 & 3x3y1=0 by the method of elimination.

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Solution

x-3y=7----(1)
3x-3y=1---(2)
on adding equation (1) &(2)
x-3y=7
3x-3y=1
(-)(+)(-)
_________
-2x=6
[x=-3]
Form eq (1)
3y=-3-7=-10
[y=103]
value of x is -3 & y is 103

1215451_1369070_ans_8421d0ac85304a388e611fdc0e93c7a3.JPG

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